CN1358561A - Diaphragm separator - Google Patents
Diaphragm separator Download PDFInfo
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- CN1358561A CN1358561A CN 01120692 CN01120692A CN1358561A CN 1358561 A CN1358561 A CN 1358561A CN 01120692 CN01120692 CN 01120692 CN 01120692 A CN01120692 A CN 01120692A CN 1358561 A CN1358561 A CN 1358561A
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- membrane
- separation apparatus
- air
- pipe
- membrane separation
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Abstract
The present invention relates to a membrane separator, including membrane flushing air-blowing device, shallow water layer membrane channe lchannel-body, membrane component, membrane block equipped with microfilter hollow fibre membrane wire or membrane plate on the membrane component, membrane cleaned water outlet pipe, membrane cleaned water outlet communicated branch pipe, air-blowing pipe, air-blowing branch pipe holed pipe, base frame or base seat, water inlet pipe of membrane separator, return pipe opening of membrane separator, interface of membrane component and membrane block, said channel body is opened, height is 0.5-3.0m, the above-mentioned membrane block contains microfilter or ultrafilter hollow fibre membrane wires or membrane plates which are vertically arranged in inclined angle of 45 deg. and mounted, the membrane cleaned water oulet pipe, water inlet pipe and return pipe are connected with lower portion of membrane channel.
Description
Technical field
The present invention relates to field of membrane bioreactor technology, particularly the shoaling layer membrane separation apparatus.
Background technology
A kind of known membrane bioreactor, promptly the biological device of cross-current type film is made up of bio-reactor unit and cross-current type membrane separation apparatus unit.There is following shortcoming in its membrane separation apparatus: pollute in order to prevent film, adopt high circular flow flushing membrane surface, the ratio of the quantity of circulating water of membrane separation apparatus and permeable amount is up to 100-600: 1, circulating water flow speed is (Fan Yaobo etc. between 1-4m/s generally, ACTA Scientiae Circumstantiae, 1997,17 (1): 68-74).The shearing force that high like this flow velocity produces not only can be smashed microorganism cells, reduces microbic activity, and causes the operation energy consumption height of cross-current type membrane separation apparatus, is 5-8kWh/m
3, be traditional activated sludge process 15-20 doubly.Therefore, water temperature raises in the membrane separation apparatus, needs cooling apparatus sometimes.In order to overcome the shortcoming that the cross-current type membrane separation apparatus exists, by Japanese scholar Yamamoto integral type film biological reactor was proposed in 1989, form (Yamamoto K.et al. by bio-reactor and the membrane separation apparatus that is immersed in the bio-reactor, 1989, Wat.Sci.Tech., Vol21:(4/5), 43-54).The energy consumption of integral type film separator reduces greatly.The integral type film separator operation energy consumption of industrial applications is generally at 2-4kWh/m
3The characteristics of utilizing integral type film biological reactor submergence membrane separation apparatus to cut down the consumption of energy, Canadian Zenon company studied the submerged membrane separator (Hadi Husain, QWI Mar/Apr.1999, pp19-22).This membrane separation apparatus is separated the submerged membrane bio-reactor with bio-reactor in conjunction with having constituted.But this submerged membrane separator is made up of membrane module and the film case that membrane module is housed.Its operation energy consumption is still higher, 1.3-2kWh/m
3The still higher basic reason of this membrane separation apparatus operation energy consumption is that membrane filtration pressure must still effectively not separate by pressure with film flushing institute.Its membrane module that adopts is up to 1.8-2.0m, and its submerged membrane separator box height reaches 3 meters approximately.The pressure that air-blowing when film is washed must overcome 3 meters depth of waters on the aspiration tube could reach the effect of cleaning to film.
Summary of the invention
The object of the present invention is to provide a kind of membrane filtration pressure and film of making to wash the effectively isolating film flushing energy consumption of can reducing greatly of required pressure, and then can lower the membrane filtration operation energy consumption greatly, reduce the shoaling layer membrane separation apparatus of membrane separation apparatus cost greatly.
Shoaling layer membrane separation apparatus provided by the invention is made up of together with the interface 12 of arm 6, air-blowing main 7, air-blowing arm perforated pipe 8, pedestal or pedestal 9, membrane separation apparatus water inlet pipe 10, the membrane separation apparatus backflow mouth of pipe 11, membrane module and film piece water conduit tube 5, the film water outlet of purifying waste water of purifying waste water out of the film piece 4, the film that on film flushing air-blowing device 1, shallow water tunic groove cell body 2, membrane module 3, the membrane module micro-filtration hollow-fibre membrane silk are housed or touch plate.
Shoaling layer cell body 2 is uncovered, and the depth of water must be controlled at from the water surface～2.5m, in particular for the desirable 1.0m of the energy consumption depth of water, the .5m or more shallow that reduce film flushing air-blowing; For flushing membrane assembly 3, air enters air-blowing arm perforated pipe 8 by the air-blowing main 7 of air-blowing device 1; In the water layer that air-blowing main 7 and film flushing air-blowing arm 8 are installed in the water surface to the 2.5 meter depth of water scope, air is agitated mixed solution to wash away its top arrangement and is equipped with vertically but the hollow-fibre membrane silk that certain angle tilts or the membrane module 3 of lamina membranacea; The inclination of membrane module 3 is placed to guarantee that film silk or lamina membranacea obtain effective flushing of air-blowing and mixed solution; During membrane filtration by hydrostaticpressure or draw by suction pump and to purify waste water.Purify waste water and draw through membrane module rising pipe 5; The water inlet pipe 10 of mixed solution through being communicated with enters film groove 2, draws through the return line 11 that is communicated with.
Shoaling layer membrane separation apparatus of the present invention is owing to adopt the depth of water at flushing membrane assembly under the water surface～2.5m condition, flushing pressure is low, the flushing energy consumption is little, use and the separate type membrane bioreactor, the comparable a kind of known less energy-consumption submerged membrane bio-reactor operation energy consumption of its operation energy consumption falls 30%～60%, if adopt more shallow water depth, it is more that its operation energy consumption will reduce.
Description of drawings
Fig. 1 represents shoaling layer membrane separation apparatus side elevational view of the present invention;
Fig. 2 represents the positive view that digs of shoaling layer membrane separation apparatus of the present invention.
The shoaling layer membrane separation apparatus can be with various types of bio-reactors in conjunction with forming the separate type membrane bioreactor.Bio-reactor can be that the activated sludge process system also can be the biomembrance process system.Can in industrial wastewater treatment system and big-and-middle scale urban sewage treatment system, use the treating water reuse that can suit.
Claims (8)
1, a kind of membrane separation apparatus, it is characterized in that: this membrane separation apparatus comprises shallow water tunic groove cell body (2), film flushing air-blowing device (1) is equipped with in the bottom, membrane module (3), the film piece (4) of micro-filtration hollow-fibre membrane silk or lamina membranacea is housed on the membrane module (3), with micro-filtration hollow-fibre membrane silk or touch film that the film piece (4) of plate the links to each other water conduit tube (5) of purifying waste water out, film is purified waste water water outlet together with arm (6), air-blowing main (7), air-blowing arm perforated pipe (8), pedestal or pedestal (9), membrane separation apparatus water inlet pipe (10), the membrane separation apparatus backflow mouth of pipe (11), the interface of membrane module and film piece (12).
2, membrane separation apparatus as claimed in claim 1 is characterized in that, shoaling layer cell body (2) is uncovered, height 0.5～3.0m.
3, membrane separation apparatus as claimed in claim 1, it is characterized in that, the air-blowing device (1) of flushing membrane assembly (3) is made up of air-blowing main (7) and air-blowing arm perforated pipe (8), and air-blowing main (7) and film flushing air-blowing arm (8) is installed in the water layer in the water surface to the 2.5 meter depth of water scope.
4, membrane separation apparatus as claimed in claim 1 is characterized in that, vertical 5～45 degree oblique arrangement of membrane module (3) are installed.
5, membrane separation apparatus as claimed in claim 1 is characterized in that, film groove (2) is equipped with the return line (11) that is communicated with water inlet pipe (10) and is communicated with.
6, membrane separation apparatus as claimed in claim 1 is characterized in that, described hollow-fibre membrane silk or lamina membranacea are ultra-filtration membrane or microfiltration membrane;
7, membrane separation apparatus as claimed in claim 1 is characterized in that, film piece interface (12) is an active interface.
8, membrane sepn as claimed in claim 1 is characterized in that, pedestal or pedestal (9) are steel construction or rock structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011206926A CN1180875C (en) | 2000-12-15 | 2001-08-13 | Diaphragm separator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00135705.0 | 2000-12-15 | ||
| CN00135705 | 2000-12-15 | ||
| CNB011206926A CN1180875C (en) | 2000-12-15 | 2001-08-13 | Diaphragm separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1358561A true CN1358561A (en) | 2002-07-17 |
| CN1180875C CN1180875C (en) | 2004-12-22 |
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ID=25739690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011206926A Expired - Fee Related CN1180875C (en) | 2000-12-15 | 2001-08-13 | Diaphragm separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1180875C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396366C (en) * | 2005-04-21 | 2008-06-25 | 中国科学院生态环境研究中心 | Hollow fiberous-membrane assembly root braiding reinforcing technology |
| CN104876327A (en) * | 2015-04-17 | 2015-09-02 | 大连理工大学 | Folded plate membrane assembly for retarding membrane pollution in membrane bioreactor |
-
2001
- 2001-08-13 CN CNB011206926A patent/CN1180875C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396366C (en) * | 2005-04-21 | 2008-06-25 | 中国科学院生态环境研究中心 | Hollow fiberous-membrane assembly root braiding reinforcing technology |
| CN104876327A (en) * | 2015-04-17 | 2015-09-02 | 大连理工大学 | Folded plate membrane assembly for retarding membrane pollution in membrane bioreactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180875C (en) | 2004-12-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20130813 |